23129715 has 24 divisors (see below), whose sum is σ = 43050960. Its totient is φ = 10573248.

The previous prime is 23129683. The next prime is 23129723. The reversal of 23129715 is 51792132.

It is not a de Polignac number, because 23129715 - 2⁵ = 23129683 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15000 + ... + 16469.

It is an arithmetic number, because the mean of its divisors is an integer number (1793790).

Almost surely, 2^23129715 is an apocalyptic number.

23129715 is a deficient number, since it is larger than the sum of its proper divisors (19921245).

23129715 is a wasteful number, since it uses less digits than its factorization.

23129715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31491 (or 31484 counting only the distinct ones).

The product of its digits is 3780, while the sum is 30.

The square root of 23129715 is about 4809.3362327872. The cubic root of 23129715 is about 284.9203224480.

The spelling of 23129715 in words is "twenty-three million, one hundred twenty-nine thousand, seven hundred fifteen".